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Custom Sand Casting Services for Complex Metal Parts

Precision casting solutions from 0.1kg to 100kg
ISO 9001 Certified · ±0.02mm Tolerance · CNC Machining Ready

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Why Choose Our Sand Casting Services

Trusted by global manufacturers for delivering complex metal parts with precision, speed, and flexibility — from prototypes to full-scale production.

Complex Geometry & Tight Tolerance

We specialize in casting intricate shapes with precise dimensions, ensuring ±0.02mm accuracy and high repeatability — ideal for critical industrial parts. .

Flexible Alloy Selection

Choose from a broad range of ferrous and non-ferrous alloys, customized for strength, durability, and thermal performance in automotive, energy, and machinery. .

Fast Lead Time & Low-Volume Friendly

From rapid tooling to short-run production, we deliver functional prototypes in 7 days and small batch parts in 15–30 days. .

Full Process Control & Testing

From pattern design to final inspection, every step is monitored for consistency. NDT, pressure testing, and dimensional checks ensure reliability. .

Our Sand Casting Workflow

From initial mold design to final inspection, our sand casting process delivers reliable quality and dimensional accuracy for both simple and complex parts.

1.Mold Design

Custom sand molds are developed using CAD software and pattern making to match your design specifications and casting feasibility. .

2.Sand Casting

Molten metal is poured into sand molds, allowing for versatile shapes and cost-effective production for medium to large parts. .

3.CNC Machining

Precision machining ensures tight tolerance and smooth surfaces when required — enhancing final functionality and fit. .

4.Finishing & Inspection

After casting, parts go through surface treatments and full inspections — including dimensional checks and surface quality verification. .

Sand Casting Capabilities

We provide flexible sand casting services to meet your specifications — ideal for both low-volume prototypes and medium- to large-sized industrial components.

Specification Details
Casting Weight Range 0.5 kg – 50 kg
Typical Alloys ZL101, A356, ADC12
Annual Output 500,000+ castings
Dimensional Tolerance ±0.3 – ±0.5 mm
Tooling Lead Time 15–25 days (pattern & core box)
Molding Process Green Sand / Resin Sand Molding

Our Sand Casting Projects

Sand-Cast Pump Housing

Sand cast valve body with double flanges for fluid control applications

Sand–Cast Valve Body

Sand casting gearbox housing for industrial machinery applications with precision-machined flanges

Sand Cast Gearbox Housing

Sand Cast Compressor Base Casting

Sand cast bearing bracket with mounting base for industrial machinery

Sand–Cast Bearing Bracket

Flanged Pipe Fitting

Aluminum
Casting

Lightweight and corrosion-resistant, perfect for precision parts. Ideal for automotive, aerospace, and consumer electronics applications.
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Steel
Casting

High-strength steel castings for demanding applications. Perfect for pressure vessels, valves, and mining equipment.
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Iron
Casting

Durable and economical. Grey and ductile iron solutions for automotive, pump housing, and industrial parts.
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Ready to Start Your Project? Send us your drawings for a fast DFM review and quotation.

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Materials Suitable for Sand Casting

  • Gray Cast Iron
  • Ductile (Nodular) Cast Iron
  • Carbon Steel
  • Alloy Steel
  • Stainless Steel
  • Aluminum Alloys
  • Brass
  • Bronze
  • Copper
Molten iron being poured into a sand casting mold

Looking for custom sand casting?

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FAQ – Frequently Asked Questions

Sand casting is a traditional metal casting process in which molten metal is poured into a sand mold cavity. It is widely used for producing large, complex, or low-volume metal components.
Sand casting is compatible with a wide range of metals, including gray iron, ductile iron, carbon steel, aluminum alloys, and brass. The choice depends on the application and required properties.
  • Cost-effective for small to medium production runs
  • Handles large and complex shapes
  • Wide range of metal options
  • Short lead time for prototype or custom parts
Common sand casting methods include:
  • Green Sand Casting
  • Resin Sand Casting
  • Sodium Silicate Casting
  • Shell Mold Casting
Each has specific advantages depending on precision, surface finish, and production scale.
Yes. Sand castings are often machined to achieve tighter tolerances. Common surface treatments include:
  • Shot blasting or sand blasting
  • Anti-rust coating or painting
  • Galvanizing or heat treatment
Quality is ensured by:
  • Optimizing mold design and gating system
  • Controlling sand quality and compaction
  • Monitoring pouring temperature and speed
  • Applying visual and non-destructive testing (e.g. UT, X-ray)

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